NHTSA Complaint #11488639 — 2020 MERCEDES-BENZ SPRINTER 2500

The adaptive cruise control system and forward collision system since the vehicle was new has frequently not worked or stops working. The cruise control system that is tied to the forward collision systems would stop working causing the vehicle to decelerate as no throttle input was present and cause the need to use the foot throttle. The vehicle is available for inspection. As this has happened while driving at freeway speeds with traffic around I consider this a hazard. This problem has been present since the vehicle was new and continues to the present time even after dealership fixes. The dealership is aware of this problem and initially tried to “ recalibrate the sensors “ with no success, and finally found that the wire connectors were not connected properly. Since this fix was performed the cruise control has continued to turn off primarily if minimal forward traffic is sensed, but proceeds to reset either later the same day or the following day. As the vehicle his under warranty and has not been involved in an accident the only people who have seen it are the dealership. The vehicle will give two warnings at the time of the system failing 1.”Active Distance Assist Inoperative “, and 2. “Active Brake Assist Functions Limited See Owners Manual”. For the dates and mileage listed below this issue has been present with the vehicle since new to current as an intermittent issue so the dates and mileage do not represent the actual events. Having looked at van blogs on this issue this is an common problem with owners of vans and other Mercedes vehicles with the radar adaptive cruise control referred to as “Distronic “